buzzer.hpp

/*
 * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
 * Copyright (c) 2014 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#pragma once

#include <string>
#include <mraa/pwm.h>

#define  DO     3800    // 262 Hz - C4
#define  RE     3400    // 294 Hz - D
#define  MI     3000    // 330 Hz - E
#define  FA     2900    // 349 Hz - F
#define  SOL    2550    // 392 Hz - G
#define  LA     2270    // 440 Hz - A
#define  SI     2000    // 494 Hz - B

namespace upm {

class Buzzer {
    public:
        Buzzer (int pinNumber);

        ~Buzzer ();

        int playSound (int note, int delay);

        void stopSound();

        void setVolume(float vol);

        float getVolume();

        std::string name()
        {
            return m_name;
        }
    protected:
        std::string m_name;
    private:
        mraa_pwm_context m_pwm_context;
        float m_volume;
};
}